I recently bought a Klipsch 10" sub and a Yamaha RX-563 receiver. On the receiver it only has a single plug to output to the sub, but on the sub I see two RCA inputs one for left and one for right, and I also see red and black speaker connectors 2 labeled high level in and 2 labeled high level out. It doesn't explain anything in my manuals. I'm sure this is a basic question, but I'm new to this stuff so any help would be greatly appreciated.
Thanks!